{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"61F-INL AC110/220 4KM","brand":"Omron","brandSlug":"omron","productSlug":"61F-INL-AC110-220-4KM","canonicalUrl":"https://aoctrl.com/omron/61F-INL-AC110-220-4KM","factsUrl":"https://aoctrl.com/api/mcp/products/61F-INL%20AC110%2F220%204KM","rawCanonicalId":null},"summary":{"shortDescription":"Omron 61F Series, High/Low Level Controller, 110/220VAC, SPDT (2 Form C) Relay Output, DIN Rail, 4km Max Sensor Distance.","salesMarkdown":"The Omron 61F-INL AC110/220 4KM is a High/Low Level controller from the 61F series, designed to monitor and control liquid levels in tanks, reservoirs, or process vessels. It accepts a 110/220VAC supply and drives two SPDT relay outputs (2 Form C), each rated at 3A @ 200VAC. The headline spec here is the 4 km maximum distance between the controller and the remote sensor electrodes — that's the '4KM' suffix. For a level relay, 4 km means you can place the controller in a central panel and run the electrode wires out to a tank farm or remote sump without signal loss or false triggering. Sensitivity is adjustable from 0 to 0.7 kΩ, which lets you tune the detection threshold for different liquid conductivities — clean water, wastewater, conductive process fluids all have different resistance values between the probe tips. Mounts on standard DIN rail — snaps onto the top hat profile in the panel, screw terminals for the electrode and power connections. Alarm High/Low contact indication is built in — the front-panel LEDs and relay states give you a quick visual on whether the level is above the high probe, below the low probe, or in the normal band. Useful for a panel walk-by check without opening the door. The 61F series has been around for decades, and the INL variant with the 4 km range is a standard stocking item.","metaTitle":"Omron 61F-INL AC110/220 4KM Level Controller, 4km Range","metaDescription":"Omron 61F-INL AC110/220 4KM level controller, High/Low Level type, 110/220VAC supply, SPDT relay outputs, 4km sensor distance. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["General Purpose Relays"],"specifications":{"Type":"High/Low Level","title":"61F-INL AC110/220 4KM","Series":"61F","Weight":"0.904 lb (410.05 g)","Package":"Bulk","Features":"Alarm High/Low - Contact, Level Indication","Output Type":"Relay (2)","Sensitivity":"0 ~ 0.7kOhm","description":"CNTRL LIQ LEV 110/220VAC DINRAIL","Contact Form":"SPDT (2 Form C)","Mounting Type":"DIN Rail","lifecycle_stage":"mature","Voltage - Supply":"110/220VAC","Termination Style":"Screw Terminal","Operating Temperature":"-10°C ~ 55°C","Contact Rating @ Voltage":"3A @ 200VAC","Distance - Control To Sensor (Max)":"4km"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$807.31 – $831.29","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5b5dc1f0cd8beb6749356b26b621be0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is 61F-INL AC110/220 4KM's listed type?","answer":"It is a High/Low Level controller — it monitors two probe points (high and low) and switches the relays accordingly to fill or drain a tank."},{"question":"What is the maximum distance between the controller and the sensor electrodes?","answer":"The rated maximum distance is 4 km, which is the '4KM' suffix in the order code. This allows the controller to be centrally located while the probes are in a remote tank or pit."},{"question":"What supply voltage does this unit accept?","answer":"It accepts 110/220VAC — a dual-range input that covers standard line voltages in most regions without needing a separate transformer tap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/61F-INL-AC110-220-4KM","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/61F-INL-AC110-220-4KM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}